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14. MAINTENANCE & ERROR MESSAGE
Monthly maintenance
a. Inverter running
Monitor and record the running status (ex. output current). Compare the data with the previous recorded.
b. Inverter power off
Check and Ensure all ventilation Fans are un-obstructed.
Examine the input and output power terminals for signs of overheating.
Three-Monthly maintenance
Perform monthly maintenance as described above.
Remove any accumulated dust from the equipment. Using a suction type cleaner with a non-conducting nozzle.
Error Messages:
ERROR CODE
MESSAGE DESCRIPTION
n. --
NO ALARM
n. OP
OVER VOLTAGE
n. UP
UNDER VOLTAGE
Note: n=0, present alarm type.
n. OL
OVER LOAD
n=1, alarm type before.
n. OH
OVER HEAT
n=2, alarm type twice before.
n. OC
OVER CURRENT when normal run
n=3, alarm type three times before.
n. CA
OC when acceleration
n. CD
OC when deceleration
n. CB
OC when braking
n. CS
OC detect by Software
Counter Measure
OP: Check input voltage or modify deceleration rate
UP: Check input voltage
OL: Check load current
OH: If external Digital Input causes the OH, check external input source.
Otherwise, check the working temperature of HEAT SINK, and check the load current, or decrease carrier frequency.
OC: Check motor wiring, or check inverter itself.
CA: Decrease acceleration rate.
CD: Decrease deceleration rate.
CB: Modify Pr.05, Pr.06, Pr.07, Pr.08.
CS: Check inverter by qualified engineer.